GB/T 223.7-2002 Active National standards

GB/T 223.7-2002 Iron powder—Determination of iron content—Potassium dichromate titration method

Publish Date: 2002-09-11 Implement Date: 2003-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 223.7-2002

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for steel and iron alloys

ICS Name: Chemical analysis of metal materials

Publish Date: 2002-09-11

Implement Date: 2003-02-01

Pages: 12 pages

Development Information

Word Count: 12 Thousand words Pages: 12 pages

Replace the following standards

GB 223.7-1981

Referenced Standards

GB/T 5314-1985 Powders for powder metallurgical purposes—Sampling GB/T 12805-1991 Laboratory glassware—Burettes GB/T 6379-1986 Precision of test methods Determination of repeatability and reproducibility for a standard test method by interlaboratory tests

Related Standards

GB/T 2596-1981 Abolished

GB/T 2596-1981 Tungsten powder and tungsten carbide powder—Determination of specific surface product (average grainine- ss—Simplified nitrogen absorption method

Publish Date: 1981-06-07

GB/T 3249-1982 Replaced

GB/T 3249-1982 Standard method for determination of particle size of powders of refractory metals and compounds—Fisher method

Publish Date: 1982-06-21

GB/T 3488-1983 Replaced

GB/T 3488-1983 Hardmetals—metallographic determination of microstructure

Publish Date: 1983-02-21

GB/T 3489-1983 Replaced

GB/T 3489-1983 Hardmetals—Metallographic determination of porosity and uncombined carbon

Publish Date: 1983-02-21

GB/T 3651-1983 Replaced

GB/T 3651-1983 Measuring method for thermal conductivity of metal at high temperature

Publish Date: 1983-05-02

GB/T 4059-1983 Replaced

GB/T 4059-1983 Polycrystalline silicon—Examination method—Zone-melting on phosphorus under controlled atmosphere

Publish Date: 1983-12-20